Elouild duplessis



(No Model.)

E. DUPLESSIS.

WEIGHINGSGALBPOR RAILWAY CARS. Y No. 882,412; 088811888188@ 8, 1888.

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INVBNTOR BY `r er'.

ATTORNEYS.

UNITED STATES PATENT OEEICE.

ELOUILD DUPLESSIS, OF LAKE WEEDON, ASSIGNOR TO HIMSELF AND JOHN y ROCHE, OFQUEBEO, QUEBEC, CANADA.

WEIGHING-SCALE FOR RAILWAY-CARS.

SPECIFICATION forming part of Letters Patent No. 382,412, dated May 8, 1888.

Application filed April 8, 1887. Serial No. 234,144. (No model.)

To aZZ whom t may concern:

Beit known that I, ELOUILD DUrLnssrs, of Lake Weedon, in the county of Wolfe, in the Province of Quebec,and the Dominion of Canada,have invented a. new and Improved Weghing-Scale, of which the following is a full, clear, and eXact description.

My invention is intended to afford means by which a railwaycar can be weighed at any point on the track and with equal facility when the car is not standing level, the weight being laken, as usual, at the four points of support.

The apparatus may be thus described: A bar or lever of suitable length and section is made with a cross-head, on the ends of which are formed projections having their fronts parallel to the cross-head knifeedged and far enough apart to allow them to be introduced between the wheel-tire and the top of the rail. The outer end of this bar is turned up and forked, and in it are formed bearings for the knife-edges of the trunnions of a bar lying in the fork of and above and parallel to the first bar or lever and carrying a graduated scaleA and an equipoise. Upon the lower bar is fixed a level and a saddle confining the free end of the top bar. From this top bar projects some little'distance in front of the pivot-knife edge trunnions having their bearings in the forked end of a swinging block, in which is formed an opening. Through this passes a ratcheted support with turned end and foot. Upon the lower bar lies loosely a wedge-shaped plate, secured in place by a pin or bolt passing up through a slot formed in it. When this is pushed forward, it will rest on a knife-edge formed on the cross-head and be at an angle to the bar.

For full comprehension of my invention reference must be had to the annexed drawings,

forming part of this specification, in which-f- Figure 1 is a side view of the apparatus, showing it in operation. Fig. 2 is a plan view of same. Fig. 3 is a vertical cross-section of the same on the line .e or of Fig. 1, looking' they occupy when the car to be weighed is standing on tracks of different levels.

Similar letters of reference indicate like parts.

A is the bar or lever,of any suitable length and section, provided with the cross-head B, having the projections B B in the line of A, these projections having their fronts parallel with the cross-head and knife-edged.

E is a wedgeshaped plate lying loosely on the bar A, slotted, as shown at E', and held in place by a pin, D, passing up through the slot.

A is a k nivfe-edge formed on the cross-head B, on which the wedge-shaped piece E rests when pushed forward.

rIhe other'end of the lever A is forked, forming arms F, provided with bearings for the upwardly-turned knife-edge trunnions G of the beam H,which is thus pivoted to A.

I is a graduated beam secured on H, and l an equipoise sliding on the beam H.

K is a spirit-level secured on A, and J a saddle attached to A and confining the movement of the free end of the beam H.

L are downwardly projecting knife edge trunnions projecting from the beam H and having their bearings in the forked end O of the swinging block O. In this block O is formed an opening through which passes the ratcheted support P, with inwardly-extending foot P.

Q is the handle by which the device is lifted.

The operation of the invention is as follows: The apparatus having been brought up at right angles to the car,the knife-edged projections B B are slipped onto the rail C on each side of the car-wheel, and between it and the track. At this time the outer end of the lever A isbelow ,the level of the rail; but it is then raised by the handle Q until shown by the level K to be perfectly horizontal, when the knife-edges of the trunnions and of the proj ections B B will be in a horizontal line. All that is then needed is to pass the equipoise l along the beam H in either direction until it is brought to a level, and the weight thereby indicated. rlhis operation is of course repeated as often as required.A l/Vhen the car is on uneven ground and one side higher than the other, the functions of the wedge begin. Itis pushed forward, occupying the space between the wheel-tire and the knife-edge A,ztnd when the lever A is horizontal it will be et an :ingle to it, as shown in Fig. 5, and provide zt fuleruni.

Having thus described my invention, I beg` to state that what I claim is as follows:

l. In e weighing seule, the combination of e lever provided with :L cross-head at its inner end, :i weighing-benin pivotcd tothe outer end ofthe said lever, n swinging block pivoted to said Weighingbeainind zt support carried by said swinging block,snbstnntielly as described.

2. In a weighingseule, the combination of u lever provided et its inner end with a crosshcad having forwardly-extcnding,` projections,

a weighing-benin pivoted to the outer end oi" i the lever, nu upertured swinging block pivn oted to the weighing-benin n short distance from the pivoted end of seid beam, and a ratcheted support working in the aperture of the seid block, substantially us described.

3. In u weighing-seule, the combination of the lever A, provided with zt cross head, B, having the projections B/ et its inner end and with the forked outer end, the benin H, pivoted between the forks of the seid lever A, the graduated been] secured to the benin I, the eqnipoise I', sliding` on the benin H, the apertured bleek O, pivoted tothe benin II, und the rutcheted support I), provided with the foot I and working in the aperture ofthe Suid block, substantially ns herein shown und described.

ICL() UILD DUPLESSIS.

Witnesses:

GEORGE BOURQUE, D. G. BnLIvnm. 

